Flat Roof Framing Plan Details

And the line length measurement from the roof peak to the building wall is the hypotenuse.

Flat roof framing plan details.

Think of a flattened hip roof. You can do this with a foam layer that exactly fits your roof. It is not ideal for snow or heavy rain but modern materials and proper drainage have helped. Roof framing and drainage plans will be discussed in chapter 30.

Roof plans a roof plan is used to show the shape of the roof. This could mean flat roofs may not raise the same red flags they used to. When framing a flat roof you will need to create a slight incline. The plan that is drawn of the roof area may be either a roof plan or a roof framing plan for some types of roofs a roof drainage plan may also be drawn.

Flat roof construction for residential. If you build a flat roof try to have it slope in multiple directions to drains or gutters. As you may imagine there is a fair amount of weight involved here in terms of boards felt etc. Old asbestos roofs are often replaced with flat roofs.

Sizes of joists needed for flat roof construction. So any timber joists that are used need to be strong enough to support this weight. But now flat roofs often are constructed with fewer layers because of improved waterproofing technology. Materials such as the roofing material vents and their location.

This will help you create a flat roof framing plan. Some observers suggest it s harder to replace a flat roof than a traditional pitched shingle roof because of the labor required to remove its layers especially on older flat roofs. The run or half the building span is the base of the triangle. Although flat roofs are cheaper to build than pitched roofs they have a shorter life span.

Flat roofs are always built at a slight incline at least 1 8 inch per foot. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. A flat roof has a slope of 1 8 per foot to 2 12. Some roofs actually slope in several directions ensuring optimal water runoff.